What is Dyslexia?
Dyslexia is not a disease; it has no cure. Dyslexia is a learning disability that affects one's ability to easily process written and/or verbal language. It is the most common cause of reading, writing and spelling difficulties. Furthermore, it affects males and females nearly equally, as well as people from different ethnic and socio- economic backgrounds. Dyslexia results from differences in the structure and function of the brain. This neurological difference causes individuals with dyslexia to learn differently. The problem is not behavioral, psychological, motivational, or social. It is not a problem of vision; people with dyslexia do not "see backward."
The following definition of dyslexia was adopted by the IDA board of Directors, November 12th, 2002. This definition is also used by the National Institute of Child Health and Human Development (NICHD).
Dyslexia is a specific learning disability that is neurological in origin. It is characterized by difficulties with accurate and/or fluent word recognition and by poor spelling and decoding abilities. These difficulties typically result from a deficit in the phonological component of language that is often unexpected in relation to other cognitive abilities and the provision of effective classroom instruction. Secondary consequences may include problems in reading comprehension and reduced reading experience that can impede growth of vocabulary and background knowledge.